Rubber glazing strip for multiple glass sash



ing consists .of a metal frame Il, two glass'panes .menten of vulcanized butt'joint ls et the eenpart Ilis provided with a supplementalange Patented 1944 RUBBER nszlma. s'rnlr non MULTIPLE amiss sssn PATENT OFFiCE. 1

I oni-reuen M. ver-hagen, annue, nia., einer te The A tion of Illinois e Company,

Chicago, Ill., a corpora- 'Application 20, 1940, Serial-No. 314.813

9 Claims. (Cl. 18s-64) The present invention relates to'multiple glass sash of the type used in'air-conditioned railway ears. buses and other vehicles.

' The object of the invention is to provide, in a.A multiple glass sash of this type, an improved rubber glazing strip, which strip ailords adequate support for the glass panes. and is inexpensive,

simple, veasy to apply, and Vabsolutely weather- While thev foregoing-statements are of the nature of the invention, other more specinc obi ects and advantages will be apparent upon a full understanding of the. features of novelty in-the improved glaring strip.

In the accom g drawing: j Fig. 1 is an outside face view of a double glass car window sash equipped with a rubber glazing l strip constructed in accordance with the `invention:

Fig. 2 is a section taken onthe line 2-2 of Fig. 1;

Fig. 3 is a similar' section, taken on the line 2-3 of Fig. 1;

Pig. 4 is a section through the rubber'glazing strip, before application to the sash; and v Fig. `5 is a section, correspondingA to Fig. 2, showing a modied sash structure equipped vwith the same rubber glazing strip.

The sash shown irlligs. 1, 2 and 3 of the draw- II. and a rubber glazing strip I2. The strip I2 isLof one-piece construction, and preferably extends continuously about the sash, with a ceter of the ltop of the'sash. The edges of the panes II are positioned in closely iltting, grooves `Il in the strip I2, and the strip I2 is in turn.

positioned in a relatively wide channel Il provided in theframe I l.

The frame Ill is of two-part construction.. The` outer part Il is preferably ofge'nerally Z-shaped, cross section, while the. inner part I I is preferably of T-shaped cross section. The parts I I and II arel assembled as shown in Fig. Z-with.- the angesf. Il and If of the' parts formingthe `aider walls of the. channel Il, with the ilange 2l of the partl I1 forming a. support vfor the back 4of the rubber glazing strip I2, and with terposed sealing emp u ef rubbe, feit, cork. er other readilycompressible material. The .outer Il which is attached by bolts 2l to the edge of channel I5 are ing l2l of the which are lled with a, suitable sealing conipound 2l.

The glazing strip I2 is characterized by a cross web II, and by a plurality of4 flanges 3| at right angles to the cross web 3l forinterleaved associe ,ation with the `panes II and the sides of the channel I5. The ilanges II are provided adindicative jacent their free edges with sealing Portions 32.

of increased in which the .compressive forces'exerted on the strip I2 by the sides of the all localized.v The faces of the enlarged sealingportions 22 which engage with the panes I I are preferably corrugated longitudinally to provide a plurality of sealing ribs I3,

while the. faces of the sealing portions which through one side of the sash,` 33 and the beads 3l are all centered in a plane '3l which is parallel to the cross web lllA of the strip and passes through the clamping ilanges I8 .and I! of the frame III just inwardly of the free II will be completely. sealed of! vby the application of but a comparatively small clamping pres-- sure to the strip. The rubber 'glazingstrip Will 39 also functionemciently as a insulator. By making the frame III inthe manner-shown, the inner and outer frame parts II and I1 are kept out oi direct contact with each other, thereby further decreasing heat-or cold transfer.

part I1 from the frame part I8, whereuponthe glass panes yI I, with .the rubber glazing strip I2, can be removed as a unit from the shelf-like sup- 40 porting ilange 2l. The sidetlange's of the strip I2-may thenbe ilexedaway from the panes to .permit removal of the latter.. Y

The, sealed-oi! space 3l betw the panes II may be vented if desired by an l.-

-through a perforated cap v2l which contains an yair lter 3 9. The breather'tube I1 may pass through an aperture I0 in thej-/ilange 4I of the outer frame -part Il and through a' slot 42 in 'the ilange '20 oi' the inner frame part I 'I into a bore 42 provided in the center ilange of the -rubber glazing strip I2. By'unscrewing thecap Il, f.

andthen unscrewing an' inside cap Il. the

the window opening, against the outside sheathu breather 'tube 81 may bewithdrawn'without incar. The ilange 2l is preferably provided with longitudinally extending grooves 28.'

fllJedjbreathm-r ",5 er tube 31 located near one of the/'upper c'o'ners of the sash, which' tube opens to the atmosphere\ terference from the outer frame part I6 when the inner frame part I l is withdrawn.

In Fig. the same specially designed rubber glazing strip I2 is shown applied to a two-part sash frame of slightly modified construction. In this modified frame structure the outer part 45 is applied from the inside of the window opening and fastened in place by bolts 48, the bolts 4l forcing the outer frame part 45 against the car sheathing 4l on an interposed sealing strip I8.

, In both of these assemblies, theusual curtain guides (shown in dot-dash lines) may be applied to the sides of the window from the inside after the inner frame part has been secured to the outer frame part.

, 1. In a multiple glass sash, a one-piece rubber glazing strip for insertion in a channel in the frame of the sash in clamped engagement with the sides of the channel, said strip being characterized by a cross web and by a plurality of solidY f integral flanges at right angles to the cross web for solidlyinterleaved association with the panes of glass and the sides of the channel, and the flanges on said strip being provided adjacent `glazing strip forinsertion in a channel in the frame of the sash in clamped engagement with the sides of the channel, said strip being characterized by a cross web and by a plurality of solid integral flanges at right angles-to the cross web for solidly interleaved associationl with the panes -of glass and the sides of the channel, and the flanges on said `strip being provided adjacent their edges with solid spacing and sealing portions Y of increased thickness and. substantial width, in. which 'solid spacing and sealing portions the compression on the strip exerted by the sides of the channel is localizedto support as well as seal the panes, the surfaces of the sealing portions on the "sides of the flanges facing the panes of glass being provided with groups of closely arranged. longitudinally extending ribs, and the surfaces of the sealing portions on the sides of the flanges facing'the sides `of the channel being provided with single flat topped beads;

3. In a multiple glass sash, a one-piece rubberY tions of increasedl thickness and substantial.

width, in which solid spacing and sealing portions the compression on the strip exerted by the sides of the channlis localized to support as well as seal the panes,:the=surfac'esof the sealing portions on the sides 'of the flanges facing the panes of glass being'p'rov'ided withfgroupsof closely arranged-longitudinally.extending ribs, andthe surfaces of thesealing portions on the sides of ,the flanges "facing the sides of the channel. being provided with single flat topped beads,l and said "'bead'su and groups of ribs being lcentered in a 7 5 common plane parallel to the cross web of the strip. l

4. In a multipleglass sash, a metal frame containing a glazing channel, a single rubber glazing strip in the channel containing two or more grooves separated by one or more spacing and sealing flanges, and two or more glass panes in the grooves, the sides of the glazing strip being compressed by the sides of the channel adjacent the outer edges only of thefglazing strip, said frame beingcomposed of separable outer and inner parts, and said parts being provided with substantially spaced parallel flanges which form the side walls of the channel in the frame, other more closely spaced parallel flanges at right angles to the first mentioned flanges behind the rubber glazing strip in the'channel, and still other closely spaced parallel -langes which are parallel to the first. mentioned flanges, and clamping bolts carried by the last mentioned flanges for` drawing the rst mentioned flanges toward each other to compress the rubber glazing strip, whereby to provide an air-tight seal between the panes of glass and the flange or flanges spacing the same.

5. In a multiple glass sash, a metal frame containing a glazing channel, a rubber glazingstrip in the channel containing two or "more grooves, and two jor more glass panes in the grooves, said frame being composed of separable outer and inner' parts, and said parts being provided with substantially spaced parallel flanges which form the side wallsoi. the channel in the frame, other more closely spaced parallel flanges at right angles to the first mentioned flanges behind the rubber glazing strip in the channel, and still other closely spaced parallel flangeswhich are parallelto the flrst mentioned flanges, vclamping bolts carried by the last mentioned flanges for drawingflange parallel to the ilrst mentioned flanges for mounting the assembly'in a window opening.

6. In a double glass sash, the combination with two'closely spaced parallelpanes of glass, and a frame for the same presenting achannel, of

a one-piece rubber glazing strip in the channel in tightly clamped engagement with the sides of the latter, said glazing strip being characterized by a cross web and by three solid integral flanges at right angles to the cross webin solidly interleaved association with the panes of glass and the sides of the channel, the two side flanges of the glazing strip being provided adjacent theirI edges with laterally enlarged portions in which the clamping pressure is localized and through which such pressure is transmitted from the sides of the channel to the panes of glass and the interposed center flange,.said laterally enlarged portions serving to relieve the` glazing strip from the transmission of any substantial clamping pressure from the sides of the chan.- nel at all points inwardly of said portions.

7. In a double glass sash, the combination with two closely spaced parallel panes of glass, anda y frame for the same presenting a channel, of a onepiece rubber glazing strip in the channel in tightly clamped engagement with the sides of the latter, said glazing strip being characterized by a cross web and by three solid integral flanges atv right 'angles to the cross web in solidly interleaved association with the panes of ,glassV and thesides 'of the channel, the two side flanges of the glazing strip being provided adlacenttheir edges with laterally enlarged portions ,in which the clamping pressure is localized and through which such pressure is transmitted from the sides ofthe channel to the panes of glass and the interposed center ilange, said glazing strip being spaced from the sides of the channel inwardly of the laterally enlarged portions o! the side i'langes. l

8. In a doulle glass sash, the combination with two closely spaced parallel panes of glassL and a frame for the same presenting a channel, of a one-piece rubber glazing strip in the channel in tightly clamped engagement Iwith the sides of the latter, said glazing strip being characterized by a cross web and by three solid integral vflanges at right angles to the cross web in solidly interleaved association with the panes of glass and the sides of the channel, the two side flanges o! the glazing strip being -provided adjacent their edges with laterally enlarged portionsin which the clamping pressure is localized and through which auch pressureis transmitted from the sides of the channel tothe panes of glass and the interposed center aange, said lamly enf larged portions serving to relieve the glazingstrip iroinfthe tron of any substantial ascesa y 3 clamping pressure from the sides of the channel at all points inwardlyo! saidportions, the surfaces of the center and side flanges which engage with the panes of glass being serrated 'in parallel planes. and .the surfaces of the side ilange's which engage with the sides of the chan-A nel being substantially tlat in parallel planes.

9. In a double glass sash, the combination with 'two closely spaced parallel panes of glass, and a portions in which the clamping pressure is lo- `caliiled and through which such pressure is trans-v miixed from the sides of the channel to the panes of glass and the interposed center ilange..

' CHRISTIAN M. VERHAGEN. 

